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Finding the Fourth Proportional to 19,995.66, 29,946.78 and 15,807.54

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Solution

The fourth proportional to 19,995.66, 29,946.78 and 15,807.54 is: 23,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.66 : 29,946.78 = 15,807.54 : x
  2. Step 2: Convert to fraction form
    19,995.66/29,946.78 = 15,807.54/x
  3. Step 3: Cross multiply
    19,995.66x = 29,946.78 × 15,807.54
  4. Step 4: Simplify right side
    19,995.66x = 473,384,922.72
  5. Step 5: Solve for x
    x = 473,384,922.72/19,995.66
  6. Step 6: Final answer
    x = 23,674.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.